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1. US20200397920 - SYSTEM AND METHOD FOR QUANTIFYING THE PRESENCE OF CHEMICALS AND/OR PHYSICAL CONDITIONS IN OCULAR TISSUES

Office
United States of America
Application Number 15733121
Application Date 20.11.2018
Publication Number 20200397920
Publication Date 24.12.2020
Publication Kind A1
IPC
A61K 49/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
49Preparations for testing in vivo
A61B 3/14
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
3Apparatus for testing the eyes; Instruments for examining the eyes
10Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
14Arrangements specially adapted for eye photography
CPC
A61B 3/145
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
3Apparatus for testing the eyes; Instruments for examining the eyes
10Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
14Arrangements specially adapted for eye photography
145by video means
A61K 49/0013
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
49Preparations for testing in vivo
001Preparation for luminescence or biological staining
0013Luminescence
Applicants OPTIGGX INC.
Inventors Marek PACAL
Jeremy Michael SIVAK
Stefan WILHELM
Desmond FONN
Title
(EN) SYSTEM AND METHOD FOR QUANTIFYING THE PRESENCE OF CHEMICALS AND/OR PHYSICAL CONDITIONS IN OCULAR TISSUES
Abstract
(EN)

A system for quantifying the presence of at least one chemical and/or a physical condition in ocular tissues is provided. The system uses a membrane having at least one photo-reactive chemical- and/or physical condition-sensing indicator dye and a photo-reactive reference dye wherein both the photo-reactive chemical- and/or physical condition-sensing indicator dye and the photo-reactive reference dye are responsive to the same wavelength of an excitation light source but emit different wavelengths of light in a light spectrum. An optical data detector receives the emitted light and a processor splits the data into two or more colours of the light spectrum and measures the intensity of the two or more colours. The colour intensity belonging to the emitted light from the chemical- and/or physical condition-sensing indicator dye is compared to the colour intensity of the light emitted from the reference dye and the amount of chemical present and/or the extent of physical condition is ratiometrically determined therefrom.


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